package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.po.Category;
import com.itheima.po.R;
import com.itheima.service.CategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;
    @PostMapping("")
    public R<String> save(@RequestBody Category category){
        categoryService.save(category);
        return R.success("保存成功");
    }
//    分页查询
    @GetMapping("/page")
    public R<Page<Category>> page(Integer page, Integer pageSize){
//        分页构造器
        Page<Category> categoryPage = new Page<>(page, pageSize);
//        条件构造器
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
//        添加排序条件，根据sort进行排序
        lambdaQueryWrapper.orderByAsc(Category::getSort);
//        分页查询
        categoryService.page(categoryPage);
        return R.success(categoryPage);
    }
//    删除
    @DeleteMapping("")
    public R<String> delete(Long id){
        categoryService.deleteByIdOnNoUse(id);
        return R.success("删除成功");
    }
//    修改
    @PutMapping
    public R<String> update(@RequestBody Category category){
        categoryService.updateById(category);
        return R.error("修改成功");
    }
    @GetMapping("/list")
    public R<List<Category>> list(Integer type){
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.eq(type != null,Category::getType,type);
        lambdaQueryWrapper.orderByAsc(Category::getSort);
        return R.success(categoryService.list(lambdaQueryWrapper));
    }
}
